First observation of the decay $B_{s2}^{\ast }(5840{)}^0\to B^{\ast +}{K}^{-}$ and studies of excited $B_s$ mesons

LHCb collaboration, R. Aaij, C. Abellan Beteta +621

Properties of the orbitally excited (L=1) $B_s$ states are studied using 1.0 fb${}^{-1}$ of pp collisions at $\sqrt{s}=7$ TeV collected with the LHCb detector. The first observation…